# Pregnancy Swelling at 40 Weeks Pregnant

Source: https://www.pregnancypowerhour.com/pregnancy/symptoms/swelling-week-40
Last updated: 2026-07-01

> At 40 weeks, physiological swelling is common due to increased blood volume, but it's crucial to monitor for sudden, severe swelling in the face or hands, which warrants immediate provider contact.

As you reach 40 weeks, experiencing pregnancy swelling, or edema, is a very common physiological response as your body prepares for birth, affecting roughly 80% of pregnancies. This late stage of pregnancy often brings a peak in these physical changes. It's largely driven by a significant 50% increase in your blood volume and the increased venous pressure in your lower body. Your body is doing incredible work, and this fluid retention is a natural part of that process. While many physical changes are common in late pregnancy, such as [Itchy Skin in Pregnancy at 39 Weeks Pregnant](/pregnancy/symptoms/itchy-skin-week-39) or the appearance of [Stretch Marks at 27 Weeks Pregnant](/pregnancy/symptoms/stretch-marks-week-27), understanding the nuances of swelling is important for your peace of mind.

For most, this swelling manifests as mild puffiness in the ankles, feet, and sometimes hands, particularly after standing for extended periods or during warmer weather. It's a manageable symptom, and there are gentle approaches you can explore to find some ease. One option might be to elevate your legs above heart level when you're resting, which evidence suggests is a very effective non-pharmacologic intervention. Many find that wearing compression stockings can also be quite helpful, as research shows they reduce both edema and the risk of deep vein thrombosis (DVT). Staying adequately hydrated, paradoxically, can help your body manage fluid balance more effectively, and being mindful of excessive sodium intake, rather than eliminating it entirely, may also offer some comfort.

However, at 40 weeks, it's especially important to be clear and confident about when swelling might signal something more urgent. While general swelling is expected, sudden, severe swelling of the face or hands, particularly if it's accompanied by other symptoms like a persistent headache or visual changes, warrants urgent evaluation for preeclampsia, according to the American College of Obstetricians and Gynecologists (ACOG). This is a situation where reaching out to your care provider immediately is key. Similarly, if you experience unilateral leg pain with swelling, warmth, or redness, this could indicate a DVT and also requires urgent medical attention. It's about being informed and knowing when to seek professional guidance, just as you would monitor for other late-pregnancy sensations like [Itchy Skin in Pregnancy at 40 Weeks Pregnant](/pregnancy/symptoms/itchy-skin-week-40).

Your body is in its final preparations, and while some discomfort is common, your autonomy in making informed decisions about your well-being is paramount. Knowing what to expect and when to connect with your provider empowers you to navigate these last days of pregnancy with greater calm and clarity. Remember, your provider is your best resource for your specific situation.